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Date: Mon, 9 Jul 2007 08:45:42 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: David Miller <davem@davemloft.net>
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       suresh.b.siddha@intel.com, corey.d.gough@intel.com,
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Subject: Re: [patch 00/10] [RFC] SLUB patches for more functionality,
 performance and maintenance
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On Sat, 7 Jul 2007, David Miller wrote:

> From: Christoph Lameter <clameter@sgi.com>
> Date: Sat, 07 Jul 2007 20:49:52 -0700
> 
> > A cmpxchg is less costly than interrupt enabe/disable
> 
> This is cpu dependant, and in fact not true at all on Niagara
> and several of the cpus in the UltraSPARC family.

Hmmm... So have alternate aloc/free paths depending on the cpu?